Calamus vs Common Hippopotamus, Hippopotamus, Large Hippo

Acorus calamus compared with Hippopotamus amphibius

Key Differences

Calamus is Least Concern while Common Hippopotamus, Hippopotamus, Large Hippo is Vulnerable.

Taxonomic Classification

Rank	Calamus	Common Hippopotamus, Hippopotamus, Large Hippo
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Liliopsida (Monocots)	Mammalia (Mammals)
Order	Acorales (Acorales)	Artiodactyla (Even-toed Ungulates)
Family	Acoraceae	Hippopotamidae (Hippos)
Genus	Acorus	Hippopotamus (Hippos)
Species	Acorus calamus	Hippopotamus amphibius

Conservation Status

Calamus

LC — Least Concern

Common Hippopotamus, Hippopotamus, Large Hippo

VU — Vulnerable

Population: ~130.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Calamus	Common Hippopotamus, Hippopotamus, Large Hippo
Diet	—	Herbivore
Average Lifespan	—	40 years
Average Length	—	3.5 m
Average Weight	—	1.5 t

Habitat & Geographic Range

Calamus

Habitat

Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical coniferous forests within the Indomalayan biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (5 countries), Europe (30 countries), and North America (Canada, United States).

Common Hippopotamus, Hippopotamus, Large Hippo

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 5 distinct biome types within the Afrotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Colombia and Kenya. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Calamus

The Calamus (Acorus calamus) is a species in the genus Acorus. It is currently classified as Least Concern on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical coniferous forests within the Indomalayan biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Common Hippopotamus, Hippopotamus, Large Hippo

Africa's most dangerous large mammal, common hippos can reach 3,200 kg and inhabit rivers, lakes, and wetlands of sub-Saharan Africa. Semi-aquatic, spending up to 16 hours daily submerged to keep cool, they graze on land at night. Despite appearing docile, hippos are extremely aggressive and territorial, responsible for hundreds of human fatalities annually. Vulnerable, with populations threatened by habitat loss and illegal hunting for ivory tusks.